53 canlyniad
Rhestrir y canlyniadau yn ôl perthnasedd.
Cymraeg: Rheoliadau Gwaith Piblinellau Trawsgludo Nwy Cyhoeddus (Asesu Effeithiau Amgylcheddol) 1999
Saesneg: Public Gas Transporter Pipe-line Works (Environmental Impact Assessment) Regulations 1999
Saesneg: Domestic Plumbing & Heating (Gas Fired Water and Central Heating Appliances)
Cymraeg: Gweithfeydd Compostio a Bio-nwy
Saesneg: Composting and Biogas Plants